Japan Energy Information - Enerdata

data japan 2023The 2025 population density in Japan is 338 people per Km2 (875 people per mi2), calculated on a total land area of 364,555 Km2 (140,755 sq. miles). Largest Cities in Japan # City NamePopulation, total - Japan from The World Bank: Data. Free and open access to global development data. Free and open access to global development data. Data. HOME.